GitHub flavored FOSS I believe works best for "corporate FOSS" projects and terrible for "FOSS as how it was conceived decades ago". Or rather I believe that it is engineered exactly for the former.

What it does well is coordination between corps, working in public (while on a corp payroll) and extracting some drive-by-PR value out of random third-parties.

The closer your project is to that shape, the better it works for you. The further it is away, the more pain you will feel.

This has nothing to do with AI slop. AI slop just turned up a few knobs that were already there.